<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<style>
   header,main,footer{
        width: 1000px;
        margin: 0 auto;
    }

    header{    
        height: 200px;
        background-color: silver;
    }

    main{
        height: 400px;
        background-color: rgb(75, 207, 42);
        margin: 10px auto;
    }
    nav,article,aside{
        float: left;
        height: 100%;
    }

    nav{
        width: 200px;
        background-color: yellow;
    }
    article{
        width: 580px;
        background-color: orange;
        margin: auto 10px;
    }
    aside{
        width: 200px;
        background-color: rgb(38, 35, 216);
    }


    footer{
        height: 150px;
        background-color: rgb(77, 14, 14);
    }
</style>
<body>
    <!-- 创建头部 -->
    <header></header>
    <!-- 创建网页主题 -->
    <main>
        <!-- 左侧导航栏 -->
        <nav></nav>
        <!-- 中间的内容 -->
        <article></article>
        <!-- 右边的边栏 -->
        <aside></aside>


    </main>
    <!-- 网页底部 -->
    <footer></footer>
</body>

</html>